Volume 6 Issue 1 (January - February), 2020

Original Articles

Comparative analysis of two techniques for post space impression
Ankush Jamwal, Sandeep Kaur Bali, Shazia Mir

Background: Endodontically treated teeth usually require a post for the die reconstruction and the application of a fixed dental prosthesis (FDP) in order to handle tooth structure loss due to the endodontic treatment itself. Aim of the study: To compare two techniques for post space impression. Materials and methods: The present study was conducted in the Department of Prosthodontics of the Dental institutions. For the study, a total of 8 maxillary central incisors were kept in NaOCl solution for 2 days to remove any debris. The post space is prepared in the root canal with a number three peeso reamer leaving four mm of gutta percha at the apex and enlarged up to five number peeso reamer. Custom trays to carry medium body polyvinylsiloxane impression materials are made to recover post space impressions. Two different techniques are used to obtain the impression of post space using light body polyvinylsiloxane impression material. Results: We used two techniques and studied 10 samples for each. We observed that there were 47 impressions without voids in technique 1 and 46 impressions without voids in technique 2. The total length of prepared post space was 8 mm. completeness of impressions (maximum length of post space covered) was maximum in technique 1. Conclusion: Within the limitations of the present study, it can be concluded that technique 1 was more efficacious as compared to technique 2 for impression of post space. Keywords: Polyvinylsiloxane impression, endodontic treatment, post impression

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